What is "moralizer"

Usage examples of "moralizer".

In the above incidents, those gentle moralizers who find the serious philosophy of the music dramas too terrifying for them, may allegorize pleasingly on the philtre as the maddening chalice of passion which, once tasted, causes the respectable man to forget his lawfully wedded wife and plunge into adventures which eventually lead him headlong to destruction.

And there was a smaller but equally vocal group of moralizers, most of them not Coloradans at all, but fainthearted folks from back East who Longarm privately referred to as the Lo!

At home, my parents, being neither heavy moralizers nor stringent disciplinarians, continued life as usual.